Saudi Arabia is 1.23× the size of Mongolia

Saudi Arabia covers about 1,922,000 km² (742,000 mi²) and Mongolia about 1,565,000 km² (604,000 mi²). Below, both outlines are drawn at one scale and centred on each other.

1,922,000km²Saudi Arabia
1,565,000km²Mongolia

500 km

Saudi Arabia
Mongolia

What fits

Mongolia is 81% of the size of Saudi Arabia.
Saudi Arabia is larger by 357,000 km² (138,000 mi²), which is 23% of the area of Mongolia.
Measured in Belgiums: Saudi Arabia is about 62.7, Mongolia about 51.0.

How they differ

Saudi Arabia also has the larger population: 33.0 million against 3.4 million, 9.68× as many people.
Per square kilometre that is 17 in Saudi Arabia against 2.2 in Mongolia: Saudi Arabia is 7.88× as densely populated.
Their centres are about 5,710 km apart.
On a standard web map Mongolia looks larger than Saudi Arabia: Saudi Arabia at 24°N is drawn about 1.2× too large and Mongolia at 47°N about 2.1×, so the map shows Mongolia as 1.46× the size of Saudi Arabia, when Saudi Arabia is 1.23× the size of Mongolia.
Together Saudi Arabia and Mongolia cover 3,486,000 km², close to the size of India (3,151,000 km², 9.6% smaller).
The gap between them, 357,000 km², is about the size of Germany (358,000 km²).
At Mongolia's density, Saudi Arabia would have 4.2 million people (it has 33.0 million). At Saudi Arabia's density, Mongolia would have 26.9 million (it has 3.4 million).
Mongolia's centre is 22.9° of latitude, about 2,540 km, farther north than Saudi Arabia's.

Who wins on what

Measure	Winner	By
Larger area	Saudi Arabia	1.23×
More people	Saudi Arabia	9.68×
More crowded	Saudi Arabia	7.88×
Farther north	Mongolia	22.9° of latitude
Stretched more on a web map	Mongolia	2.1× against 1.2×

Both against the same yardsticks

Yardstick	Saudi Arabia	Mongolia
Belgium 30,700 km²	62.7×	51.0×
United Kingdom 244,000 km²	7.88×	6.42×
Germany 358,000 km²	5.37×	4.37×
Japan 374,000 km²	5.15×	4.19×
France 548,000 km²	3.51×	2.86×
India 3,151,000 km²	0.61×	0.50×
Brazil 8,473,000 km²	0.23×	0.18×
United States 9,447,000 km²	0.20×	0.17×
Russia 16,980,000 km²	0.11×	0.09×

Each figure is the place's area divided by the yardstick's.

Side by side

	Saudi Arabia	Mongolia
Area, main territory	1,922,000 km²742,000 mi²	1,565,000 km²604,000 mi²
Population	33.0 millionWikidata, 2018	3.4 millionWikidata, 2021
Density	17 per km²	2.2 per km²
Official area	2,250,000 km²Wikidata	1,564,000 km²Wikidata
Capital	Riyadh	Ulaanbaatar
Latitude range	16°N to 32°N	42°N to 52°N
Continent	Asia	Asia

Population: Wikidata 2018 and Wikidata 2021, covering each whole country. Official figures: Wikidata (CC0).

Our measured 1,922,000 km² is 15% below Wikidata's official figure of 2,250,000 km². Official figures can include inland water or count land that an outline draws differently. This difference is flagged for review.
Wikidata's official figure of 1,564,000 km² agrees with our measured area of 1,565,000 km², to within 2%.

Similar in size to Saudi Arabia

Similar in size to Mongolia

More comparisons

Sources and method

Outlines: Natural Earth, 1:10m Admin 0 - Countries, public domain
Boundary: De facto, as drawn by Natural Earth. Main territory: the largest landmass and every part within 1,000 km of it.
Area: Measured on the WGS84 ellipsoid from the full-detail outlines, shown rounded. Comparisons use main-territory area.
Drawing: Each outline is projected with an equal-area projection centred on its own centroid, so areas stay true and the two can be laid over each other.
Data built: 2026-11-11

Full method